topic VSP4900/7400 CPLD version in ExtremeSwitching (VSP/Fabric Engine)

VSP4900/7400 CPLD version

WillyHe — Mon, 13 Apr 2026 14:56:55 GMT

Hello,

Does anyone know how/where to find or check for the latest "CPLD" versions for VSP4900 and VSP7400 switch types?

The command "show sys-info cpld" returns the currently installed versions.

regards
WillyHe

Re: VSP4900/7400 CPLD version

Michael_Morey — Tue, 14 Apr 2026 13:58:18 GMT

WillyHe,

Try using the "cpld-install [cpu|fpga|port|vim]" command. This will validate what version your device is currently using and check if it needs to be upgraded.

Note: This command only applies to the 4900 and is not functional on the 7400

Example - No upgrade needed:

VSP-4900-48P:1#cpld-install cpu Image file md5 checksum passed Current cpu CPLD version is 0x1112, 1.1.18 The image cpu CPLD version you are going to update now is 1.1.18 Both versions are same. No need to install again. Exiting cpld update

Example - Newer image detected and update selected:

VSP-4900-48P:1#cpld-install fpga Image file md5 checksum passed Current fpga CPLD version is 0x1126, 1.1.38 The image fpga CPLD version you are going to update now is 1.2.42 The current cpld version is older. Recommended to continue. Do you want to continue with cpld update? (y/n) ? y WARNING: Upgrading CPLD/FPGA requires writing to a device WARNING: It will take about a minute or so to complete. WARNING: DO NOT TURN POWER OFF OR MAKE ANY HARDWARE CHANGES ONCE YOU START THIS OPERATION. 1 2026-04-14T14:28:24.515Z VSP-4900-48P CP1 - 0x0026050c - 00000000 GlobalRouter SW INFO fpga CPLD update completed successfully. CP1 [04/14/26 14:28:25.000] LifeCycle: INFO: Stopping all processes FPGA/CPLD upgrade completed successfully

Hope this helps,

Re: VSP4900/7400 CPLD version

WillyHe — Wed, 15 Apr 2026 16:04:20 GMT

Hello Michael,

Thank you for replying.

I discovered the outdated FPGA version message by accident in the logs of a rebooted switch.
Don't know if a new CPLD version is mentioned in the release notes, in that case I missed it.
I know, ERS8600, VSP9K and maybe VSP8600 chassis also had these kind of software but I was not aware that is was also applicable to 1U switches.

I already did the check and upgrade tests you described in my LAB.

It would be nice when the "show sys-info cpld" command would provide the information if a version is outdated.
Better would be when the "CPU CPLD, SYSTEM FPGA or VIM CPLD" version would be upgraded when the device software is upgraded, specially due to the fact that when one of these versions is upgraded there is always a switch reboot.
It would also be nice if the actual CPLD versions and minimal switch software version information is available on the EXTREME site.

regards
WillyHe